CN105281031A - Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna - Google Patents
Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna Download PDFInfo
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- CN105281031A CN105281031A CN201510791175.3A CN201510791175A CN105281031A CN 105281031 A CN105281031 A CN 105281031A CN 201510791175 A CN201510791175 A CN 201510791175A CN 105281031 A CN105281031 A CN 105281031A
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Abstract
The invention relates to an ultra broadband dual polarization low frequency oscillator unit and a multi-frequency-range array antenna. The ultra broadband dual polarization low frequency oscillator unit comprises an oscillator, a pedestal plate, a feed needle and radiation arms, wherein two end of the oscillator are respectively connected with the pedestal plate and the radiation arms; the feed needle is arranged on the oscillator; the oscillator includes four oscillator sheets which are clamped orthogonally; corresponding grooves and bosses are respectively arranged at the center of the blades of the adjacent two oscillator sheets; any two non-adjacent oscillator sheets can be parallel to each other through clamping of the bosses and the grooves; the number of the radiation arms is 4; every two radiation arms are arranged orthogonally; a fine copper foil and a crude copper foil cover the surface of two ends of each radiation arm; the fine copper foils and the crude copper foil are respectively equivalent to the inductance and the capacitance under high frequency; and the middle segment of each radiation arm is also provided with a double-faced copper foil with a through hole. As the oscillator arm with a resonance circuit is used, the influence of existence of a low frequency oscillator on a high frequency oscillator directional diagram is eliminated; the irrelevance of the antenna wave beam is improved; and the overall performance of the antenna is improved so that the antenna can be miniaturized.
Description
Technical field
The present invention relates to antenna oscillator technical field, in particular, relate to a kind of ultra-wideband dual polarization low-frequency vibrator unit and multi-band array antenna thereof.
Background technology
At this 2G, 3G and 4G network and the period of depositing, the system of multiple use different frequency range exists simultaneously, needs to use the antenna for base station that can be operated in different frequency range.Use common narrow band antenna, a base station just needs to arrange many slave antennas, adds system complexity and property cost.In order to reduce networking cost, the multi-modulation scheme of antenna, broadband and has miniaturizedly become one of current focus.
Due to the restriction of radiating element bandwidth, in order to the multiple communication standard of compatibility, two kinds of radiating elements must be had in antenna: a kind of high frequency radiating element, another kind of low frequency radiating element.For reducing influencing each other between two kinds of radiating elements, relative position mainly through changing oscillator in existing patent reduces influencing each other between low-and high-frequency: the exhaust pipe antenna as domestic publication number being the patent application proposition of 201310451912.6, ± 45 degree of wave beams are formed by horizontal radiation unit and the synthesis of vertical radiation unit with the low frequency radiating element that external publication number is the Australian Patent proposition of AU20140139387A1, placing like this because of low frequency radiating element to make low frequency radiating element and the orthographic projection of high frequency radiating element on metallic reflection plate not overlap mutually, decrease low frequency radiating element blocking high frequency radiating element.These are all reduce influencing each other between low-and high-frequency radiating element from arrangement above, are limited on the impact of elimination low-and high-frequency radiating element.
Due to the requirement of antenna miniaturization and high isolation of system degree, seldom occur now that the same antenna comprises two low frequency system on the market, because antenna volume is little, influence each other between two row low frequencies comparatively large, the directional diagram that cannot obtain and high isolation of system degree.
Summary of the invention
For the problems referred to above, the invention provides a kind of ultra-wideband dual polarization low-frequency vibrator unit and multi-band array antenna thereof, the oscillator arms containing resonant circuit is adopted to eliminate the existence of low-frequency vibrator to the impact of high frequency oscillator directional diagram, be conducive to the irrelevance improving antenna beam, improve the overall performance of antenna, to make antenna miniaturization.
Technical scheme of the present invention is as follows:
A kind of ultra-wideband dual polarization low-frequency vibrator unit, comprise oscillator, base plate, feed pin and radiation arm, described oscillator two ends connect base plate and radiation arm respectively, and described feed pin is located on oscillator;
Described oscillator comprises the oscillator sheet of four orthogonal clampings, and the central vane of two pieces of adjacent oscillator sheets is respectively arranged with corresponding groove and boss, by the clamping of boss and groove, non-conterminous two oscillator sheets is arbitrarily parallel to each other;
Described radiation arm comprises four, described four radiation arm pairwise orthogonals distribution, to form two, orthogonal symmetric radiation is combined, described radiation arm two end surfaces is all coated with thin Copper Foil and blister copper paper tinsel, inductance when described thin Copper Foil and blister copper paper tinsel are equivalent to high frequency respectively and electric capacity, in the middle of described radiation arm, one section is also provided with the two-sided Copper Foil of via hole.
As preferably, the top of described four oscillator sheets is all provided with the first boss, and bottom is provided with the second boss, and the medial surface of oscillator sheet is coated with Ba Lun, lateral surface is coated with match circuit, and described match circuit is connected with its non-conterminous match circuit by the feed pin through oscillator sheet.
As preferably, described each radiation arm is equipped with a through hole, described through hole is corresponding with first boss at oscillator sheet top, and the end of described radiation arm is downward-sloping.
As preferably, described radiation arm is made up of printed circuit board (PCB).
As preferably, described base plate is provided with the groove matched with the second boss, mating and base plate grafting by the second boss and groove bottom described four pieces of oscillator sheets.
As preferably, described base plate is made up of printed circuit, and it is distributed with two microstrip coupled line couplers, its isolation end is connected to load, and straight-through end is to oscillator feed, and coupled end is used for being connected by cable with the coupled end of different system same polarization oscillator.
As preferably, described base plate is provided with several for whole oscillator unit being fixed to the installing hole on Antenna baseplate, and the face that base plate and Antenna baseplate close on is covered with Copper Foil, Copper Foil is coated with one deck green oil.
A kind of multi-band array antenna, comprise at least four ultra-wideband dual polarization low-frequency vibrator unit described above, described ultra-wideband dual polarization low-frequency vibrator unit is arranged on metallic reflection plate, and described metallic reflection plate is also linearly provided with high frequency vibrating subelement;
Described ultra-wideband dual polarization low-frequency vibrator unit is placed side by side between two, and adjacent lines stagger placement, and the line spaces such as same column become S type to distribute, and form two S type arranging systems;
Described high frequency vibrating subelement between two side by side linear is placed between ultra-wideband dual polarization low-frequency vibrator unit, at least two high frequency vibrating subelements between two same column ultra-wideband dual polarization low-frequency vibrator unit.
Further, the line space between described high frequency vibrating subelement is 0.5 times of ultra-wideband dual polarization low-frequency vibrator unit.
Further, described same column high frequency a period of time unit belongs to a system, or same column top and the bottom high frequency a period of time unit belongs to different systems, described ultra-wideband dual polarization low-frequency vibrator cell operation is in 694 ~ 960MHz band limits, and described high frequency vibrating subelement works in 1695 ~ 2690MHz band limits.
Compared with prior art, beneficial effect of the present invention is: adopt the oscillator arms containing resonant circuit to eliminate the existence of low-frequency vibrator to the impact of high frequency oscillator directional diagram; Box type feed oscillator sheet can provide feed to balance effectively, is conducive to the irrelevance improving antenna beam; Base plate with coupler improves the isolation between the same frequency different system of antenna effectively, improves the overall performance of antenna; The arrangement of low-frequency vibrator S type reduces beamwidth, effectively to make antenna miniaturization.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of low-frequency vibrator unit of the present invention;
Fig. 2 is the detonation configuration schematic diagram of low-frequency vibrator unit of the present invention;
Fig. 3 is the oscillator detonation configuration schematic diagram of low-frequency vibrator unit of the present invention;
Fig. 4 is the structural representation of the present invention two row low-frequency vibrator cellular installation on Antenna baseplate;
Fig. 5 is the general structure schematic diagram of the embodiment 1 of multi-band array antenna of the present invention;
Fig. 6 is the general structure schematic diagram of the embodiment 2 of multi-band array antenna of the present invention;
Fig. 7 is the general structure schematic diagram of the embodiment 3 of multi-band array antenna of the present invention.
Embodiment
Below in conjunction with drawings and Examples, a kind of ultra-wideband dual polarization low-frequency vibrator unit of the present invention and multi-band array antenna thereof are described further.
Be below the preferred example of a kind of ultra-wideband dual polarization low-frequency vibrator unit of the present invention and multi-band array antenna thereof, therefore do not limit protection scope of the present invention.
Embodiment 1
Fig. 1 to Fig. 3 shows a kind of ultra-wideband dual polarization low-frequency vibrator unit, and the base plate 3, the radiation arm 1 that comprise oscillator 2 and be connected with oscillator 2 two ends respectively, be connected to feed pin 4 on oscillator 2 in addition.Oscillator 2 comprises the oscillator sheet of four orthogonal clampings, the central vane of adjacent two pieces of oscillator sheets arranges mutually corresponding groove 23 and boss 24 respectively, by its screens, non-conterminous two oscillator sheets are arbitrarily parallel to each other, two adjacent oscillator sheets are mutually vertical, and four oscillator sheets surround the oscillator 2 of a square box-shaped.The top of four pieces of oscillator sheets is all provided with the first boss 21, bottom is provided with the second boss 22, and the medial surface of oscillator sheet is coated with Ba Lun 25, and lateral surface is covered with match circuit 26.Match circuit 26 is connected with the match circuit face of its non-conterminous oscillator sheet by the feed pin 4 through oscillator sheet.
Four radiation arm 1 orthogonal thereto distributions between two, to form two, orthogonal symmetric radiation is combined, each radiation arm 1 is provided with a through hole 11, this through hole 11 is corresponding with first boss 21 at oscillator sheet top, so that radiation arm 1 and corresponding oscillator sheet are plugged in together, also create conditions for radiation arm 1 is electrically connected with the Ba Lun 25 on oscillator sheet simultaneously.Preferably the end of radiation arm 1 dips down, to obtain more excellent antenna pattern.Radiation arm 1 is made up of printed circuit board (PCB), its two ends all cover thin Copper Foil 13 and blister copper paper tinsel 12 on the surface, inductance when being equivalent to high frequency respectively and electric capacity, middle one section of electric capacity when also having the two-sided Copper Foil 14 of via hole to be not only equivalent to high frequency, also plays the effect of overstriking low-frequency vibrator arm simultaneously.By regulating live width and the line length of thin Copper Foil 13 and blister copper paper tinsel 12, the resonance frequency of the LC resonant circuit making it be formed in high-frequency range, thus reduces low-frequency vibrator to the impact of high frequency oscillator directional diagram.
Base plate 3 be provided with bottom groove 31, four pieces of oscillator sheets of matching with the second boss 22 by the second boss 22 and groove 31 mate and base plate 3 grafting as shown in Figure 2.Base plate 3 adopts printed circuit board (PCB) to make, the microstrip coupled line coupler 34 of distribution two on it, it isolates terminating load 33, straight-through end to oscillator 2 feed as shown in Figure 2, coupled end is connected as shown in Figure 4 with the coupled end of different system same polarization oscillator (same polarization oscillator of namely going together) by cable, effectively can improve the isolation between different system by the length adjusting cable.Base plate is also provided with 5 installing holes 32, so that whole oscillator unit is fixed on the base plate of antenna, base plate 3 is covered with Copper Foil with the face of antenna floor base plate vicinity, and Copper Foil top covers one deck green oil, is connected with base plate electric coupling to realize base plate.
Fig. 5 shows a kind of multi-band array antenna, and at least four the low-frequency vibrator unit 6 stated as described in Example 1 comprising metallic reflection plate 5 and arrange on metallic reflection plate 5, its upper and lower both sides are also linearly provided with at least eight high frequency vibrating subelements 7.Described low-frequency vibrator unit 6 is placed side by side between two, and adjacent lines stagger placement, and the line spaces such as same column become the capable arrangement of S, form two capable arranging systems of S; Described high frequency vibrating subelement 7 between two side by side linear is placed between low-frequency vibrator unit 6, at least two high frequency vibrating subelements 7 between two same column low-frequency vibrator unit 6, and preferably, the line space of high frequency vibrating subelement 7 is 0.5 times of low frequency.Same column high frequency vibrating subelement belongs to a system, and same column low-frequency vibrator unit belongs to a system, whole antenna composition four antenna frequently.Also different systems can be belonged to by same column top and the bottom high frequency vibrating subelement, whole antenna composition six antenna frequently.Described ultra-wideband dual polarized antenna unit 6 works in 694 ~ 960MHz band limits, and described high frequency vibrating subelement 7 works in 1695 ~ 2690MHz band limits.
Embodiment 2
Fig. 6 shows a kind of multi-band array antenna, and its low-frequency vibrator unit adjacent rows staggers placement, and other structures are identical with embodiment 1, therefore do not repeat.
Embodiment 3
Fig. 7 shows a kind of multi-band array antenna, and its high frequency vibrating subelement increases to three row, and other structures are identical with embodiment 1, therefore do not repeat.
In sum, the oscillator arms containing resonant circuit is adopted to eliminate the existence of low-frequency vibrator to the impact of high frequency oscillator directional diagram; Box type feed oscillator sheet can provide feed to balance effectively, is conducive to the irrelevance improving antenna beam; Base plate with coupler improves the isolation between the different system of antenna effectively, improves the overall performance of antenna; The arrangement of low-frequency vibrator S type reduces beamwidth, effectively to make antenna miniaturization.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a ultra-wideband dual polarization low-frequency vibrator unit, is characterized in that, comprises oscillator, base plate, feed pin and radiation arm, and described oscillator two ends connect base plate and radiation arm respectively, and described feed pin is located on oscillator;
Described oscillator comprises the oscillator sheet of four orthogonal clampings, and the central vane of two pieces of adjacent oscillator sheets is respectively arranged with corresponding groove and boss, by the clamping of boss and groove, non-conterminous two oscillator sheets is arbitrarily parallel to each other;
Described radiation arm comprises four, described four radiation arm pairwise orthogonals distribution, to form two, orthogonal symmetric radiation is combined, described radiation arm two end surfaces is all coated with thin Copper Foil and blister copper paper tinsel, inductance when described thin Copper Foil and blister copper paper tinsel are equivalent to high frequency respectively and electric capacity, in the middle of described radiation arm, one section is also provided with the two-sided Copper Foil of band via hole.
2. ultra-wideband dual polarization low-frequency vibrator unit according to claim 1, it is characterized in that, the top of described four oscillator sheets is all provided with the first boss, bottom is provided with the second boss, the medial surface of oscillator sheet is coated with Ba Lun, lateral surface is coated with match circuit, and described match circuit is connected with its non-conterminous match circuit by the feed pin through oscillator sheet.
3. ultra-wideband dual polarization low-frequency vibrator unit according to claim 1, is characterized in that, described each radiation arm is equipped with a through hole, described through hole is corresponding with first boss at oscillator sheet top, and the end of described radiation arm is downward-sloping.
4. ultra-wideband dual polarization low-frequency vibrator unit according to claim 1, it is characterized in that, described radiation arm is made up of printed circuit board (PCB).
5. ultra-wideband dual polarization low-frequency vibrator unit according to claim 2, it is characterized in that, described base plate is provided with the groove matched with the second boss, mating and base plate grafting by the second boss and groove bottom described four pieces of oscillator sheets.
6. ultra-wideband dual polarization low-frequency vibrator unit according to claim 1, it is characterized in that, described base plate is made up of printed circuit, it is distributed with two microstrip coupled line couplers, its isolation end is connected to load, straight-through end is to oscillator feed, and coupled end is used for being connected by cable with the coupled end of different system same polarization oscillator.
7. ultra-wideband dual polarization low-frequency vibrator unit according to claim 1, it is characterized in that, described base plate is provided with several for whole oscillator unit being fixed to the installing hole on Antenna baseplate, and the face that base plate and Antenna baseplate close on is covered with Copper Foil, Copper Foil is coated with one deck green oil.
8. a multi-band array antenna, it is characterized in that, comprise at least four ultra-wideband dual polarization low-frequency vibrator unit as described in claim 1-7 any one, described ultra-wideband dual polarization low-frequency vibrator unit is arranged on a metallic reflection plate, and described metallic reflection plate is also linearly provided with high frequency vibrating subelement;
Described ultra-wideband dual polarization low-frequency vibrator unit is placed side by side between two, and adjacent lines stagger placement, and the line spaces such as same column become S type to distribute, and same column low-frequency vibrator unit belongs to a system, therefore forms two S type arranging systems;
Described high frequency vibrating subelement between two side by side linear is placed between ultra-wideband dual polarization low-frequency vibrator unit, at least two high frequency vibrating subelements between two same column ultra-wideband dual polarization low-frequency vibrator unit.
9. multi-band array antenna according to claim 8, is characterized in that, the line space between described high frequency vibrating subelement is 0.5 times of ultra-wideband dual polarization low-frequency vibrator unit.
10. multi-band array antenna according to claim 8, it is characterized in that, described same column high frequency a period of time unit belongs to a system, or same column top and the bottom high frequency a period of time unit belongs to different systems, described ultra-wideband dual polarization low-frequency vibrator cell operation is in 694 ~ 960MHz band limits, and described high frequency vibrating subelement works in 1695 ~ 2690MHz band limits.
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